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What is the next term of the arithmetic progression (42,38,34,30,\ldots)?

Answer and explanation

Correct answer: (26)

The direct answer is option C, 26. An arithmetic progression (AP) is a sequence in which the same number is added or subtracted each time. Compare consecutive terms: 38−42=−4, 34−38=−4, and 30−34=−4. Thus the common difference is −4. The next term is 30+(−4)=26. Option A, 22, would result from subtracting 8, which is not the observed difference. Option B, 24, would result from subtracting 6, so it does not follow the pattern. Option C, 26, correctly continues the repeated subtraction of 4. Option D, 28, would result from subtracting only 2. Since the terms decrease by 4 at every step, 26 is certain. Memory cue: in a decreasing AP, write the common difference with its negative sign and apply it once more.

Related tags

SequencesProgressionsArithmetic-ProgressionClass-9Easy

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